Adds Teachers of Tomorrow to the list of certificating entities from which the State Board of Education shall accept a teacher's credentials

SB 639 adds "Teachers of Tomorrow" to the list of approved organizations whose teacher certification credentials the Missouri State Board of Education must accept. This bill directly affects educators seeking certification through Teachers of Tomorrow, allowing them to use its program to qualify for teaching licenses in Missouri public schools. The key mechanism is amending Section 168.021 to explicitly include Teachers of Tomorrow alongside existing certifiers like ABCTE, requiring applicants to meet the organization's 60-hour teaching experience requirement. The bill does not change certification standards but expands the pathways for obtaining state-recognized teaching credentials.